Malicious PDF — malware analysis report

Static analysis result for SHA-256 77bda03324e18f8b…

MALICIOUS

PDF

20.5 KB Created: 2019-05-02 05:09:29 +01:00 Authoring application: mPDF 5.7
MD5: 0d2eee2d03c24d408ce8a1d9a7d52cc7 SHA-1: 31f03c021c91cb1a969d0ece2abeaaf4eac9cd97 SHA-256: 77bda03324e18f8ba6f5c34ae043b2e5e9400c763b1953b2a23c3d442e43cf14
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs, identified as a link farm. While the document body is heavily obfuscated, the presence of numerous links suggests an attempt to manipulate search engine results or redirect users to potentially malicious content. The ML classifier also flagged this PDF as malicious, supporting the assessment of a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9922

Heuristics 2

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://cefasfese.4pu.com/4734731735734739/Like-a-Rolling-Stone-Bob-Dylan-at-the-Crossroads-by-Greil-Marcus.pdf
    • http://cefasfese.4pu.com/4734731732730732/The-Old-Weird-America-The-World-of-Bob-Dylan-s-Basement-Tapes-by-Greil-Marcus.pdf
    • http://cefasfese.4pu.com/4739736733735736/The-Dustbin-of-History-by-Greil-Marcus.pdf
    • http://cefasfese.4pu.com/1730732737730730735/Die-Geschichte-des-Rock-n-Roll-in-zehn-Songs-by-Greil-Marcus.pdf
    • http://cefasfese.4pu.com/1735739735736739/Lipstick-Traces-A-Secret-History-of-the-Twentieth-Century-by-Greil-Marcus.pdf
    • http://cefasfese.4pu.com/1733737732735739/Mystery-Train-Images-of-America-in-Rock-n-Roll-by-Greil-Marcus.pdf
    • http://cefasfese.4pu.com/4739736733736735/Ranters-and-Crowd-Pleasers-Punk-in-Pop-Music-1977-1992-by-Greil-Marcus.pdf
    • http://cefasfese.4pu.com/4737735736738738/Susan-Sontag-The-Complete-Rolling-Stone-Interview-by-Jonathan-Cott.pdf
    • http://cefasfese.4pu.com/4734731731739737/It-s-Only-Rock-n-Roll-Thirty-Years-Married-to-a-Rolling-Stone-by-Jo-Wood.pdf
    • http://cefasfese.4pu.com/4739736732737730/Lennon-Remembers-The-Full-Rolling-Stone-Interviews-from-1970-by-Jann-S-Wenner.pdf
    • http://cefasfese.4pu.com/4739738732730737/Rock-of-Ages-The-Rolling-Stone-History-of-Rock-and-Roll-by-Ed-Ward.pdf
    • http://cefasfese.4pu.com/4734730739739738/Dylan-Goes-Electric-Newport-Seeger-Dylan-and-the-Night-That-Split-the-Sixties-by-Elijah-Wald.pdf
    • http://cefasfese.4pu.com/6739735/Rolling-in-the-Deep-Rolling-in-the-Deep-0-5-by-Mira-Grant.pdf
    • http://cefasfese.4pu.com/3733735739735735/Rolling-in-the-Deep-Rolling-in-the-Deep-0-5-by-Mira-Grant.pdf
    • http://cefasfese.4pu.com/4730738732738736/The-Collected-Poems-of-Dylan-Thomas-by-Dylan-Thomas.pdf
    • http://cefasfese.4pu.com/7732733731737736/The-Commentaries-of-the-Emperor-Marcus-Antoninus-Containing-His-Maxims-of-Science-and-Rules-of-Life-Wrote-for-His-Own-Use-and-Address-d-to-Himself-by-Marcus-Aurelius.pdf
    • http://cefasfese.4pu.com/5730738732734733/Prejudice-and-Tolerance-in-Ireland-by-M-che-l-Mac-Gr-il.pdf
    • http://cefasfese.4pu.com/4739733739730737/Holiday-in-Stone-Creek-A-Stone-Creek-Christmas-At-Home-in-Stone-Creek-Stone-Creek-4-amp-6-by-Linda-Lael-Miller.pdf
    • http://cefasfese.4pu.com/6735733733737734/The-Meditations-of-Marcus-Aurelius-Selections-Annotated-amp-Explained-by-Marcus-Aurelius.pdf
    • http://cefasfese.4pu.com/1731734736735734732/The-Thoughts-Meditations-of-the-Emperor-Marcus-Aurelius-Antoninus---With-Biographical-Sketch-Philosophy-Of-Illustrations-Index-and-Index-of-Terms-by-Marcus-Aurelius.pdf